Joe Onorato | 99598ee | 2019-02-11 15:55:13 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "proto_util.h" |
| 18 | |
| 19 | #include <google/protobuf/io/zero_copy_stream_impl.h> |
| 20 | |
| 21 | #include <android/util/protobuf.h> |
| 22 | #include <android/util/ProtoOutputStream.h> |
| 23 | #include <android-base/file.h> |
| 24 | |
| 25 | namespace android { |
| 26 | namespace os { |
| 27 | namespace incidentd { |
| 28 | |
| 29 | using namespace android::base; |
| 30 | using namespace android::util; |
| 31 | using google::protobuf::io::FileOutputStream; |
| 32 | |
| 33 | // special section ids |
| 34 | const int FIELD_ID_INCIDENT_HEADER = 1; |
| 35 | |
Yao Chen | cbafce9 | 2019-04-01 15:56:44 -0700 | [diff] [blame^] | 36 | status_t write_header_section(int fd, const uint8_t* buf, size_t bufSize) { |
Joe Onorato | 99598ee | 2019-02-11 15:55:13 +0000 | [diff] [blame] | 37 | status_t err; |
Joe Onorato | 99598ee | 2019-02-11 15:55:13 +0000 | [diff] [blame] | 38 | |
Yao Chen | cbafce9 | 2019-04-01 15:56:44 -0700 | [diff] [blame^] | 39 | if (bufSize == 0) { |
Joe Onorato | 99598ee | 2019-02-11 15:55:13 +0000 | [diff] [blame] | 40 | return NO_ERROR; |
| 41 | } |
| 42 | |
| 43 | err = write_section_header(fd, FIELD_ID_INCIDENT_HEADER, bufSize); |
| 44 | if (err != NO_ERROR) { |
| 45 | return err; |
| 46 | } |
| 47 | |
Yao Chen | cbafce9 | 2019-04-01 15:56:44 -0700 | [diff] [blame^] | 48 | err = WriteFully(fd, buf, bufSize); |
Joe Onorato | 99598ee | 2019-02-11 15:55:13 +0000 | [diff] [blame] | 49 | if (err != NO_ERROR) { |
| 50 | return err; |
| 51 | } |
| 52 | |
| 53 | return NO_ERROR; |
| 54 | } |
| 55 | |
| 56 | status_t write_section_header(int fd, int sectionId, size_t size) { |
| 57 | uint8_t buf[20]; |
| 58 | uint8_t* p = write_length_delimited_tag_header(buf, sectionId, size); |
| 59 | return WriteFully(fd, buf, p - buf) ? NO_ERROR : -errno; |
| 60 | } |
| 61 | |
| 62 | status_t write_section(int fd, int sectionId, const MessageLite& message) { |
| 63 | status_t err; |
| 64 | |
| 65 | err = write_section_header(fd, sectionId, message.ByteSize()); |
| 66 | if (err != NO_ERROR) { |
| 67 | return err; |
| 68 | } |
| 69 | |
| 70 | FileOutputStream stream(fd); |
| 71 | if (!message.SerializeToZeroCopyStream(&stream)) { |
| 72 | return stream.GetErrno(); |
| 73 | } else { |
| 74 | return NO_ERROR; |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | |
| 79 | |
| 80 | } // namespace incidentd |
| 81 | } // namespace os |
| 82 | } // namespace android |
| 83 | |